Costinett, S. <br/><br/>
Spectrum :  a communicative course in English.  Student book 6 / 
S. Costinett 
 - Hall Regents :  Englewood cliffs,  1994 
 - 136 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tiếng Anh--Giao tiếp<br/>English language<br/>English language--Spoken English.
<br/><br/><label>Dewey Class. No.: </label>428.2  / SPE(COS) 1994